矿井热害 underground thermal pollution ; mine heat damage

矿井水害 mine water disaster ; mine water hazard ; Mine flood

稻株矿质毒害 mineral injury of rice plants

矿山灾害 mine calamity ; pit disaster ; mining disaster

热害矿井 mine thermal damage

采矿辐射伤害 mining radiation hazard

矿井灾害 mining hazards ; Mine disaster

矿山地质灾害 mine geology disaster ; the mine geological disasters

煤矿地质灾害 Coal Mine Geohazard